HydroBASINS lev08 watershed · #4080839030
Bassin de Sissari
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 7 administrative regions across 2 countries : Dhemaji, East Siang, Lower Dibang Valley, Tinsukia, Upper Siang
Sub-basin area
1 681,2km²
Upstream area
41 499km²
Discharge
3 422,94m³/s
Mean elev.
777m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Dibang River1430 km²
- Bassin de Kundil River1139 km²
7 dept-equivalent regions (GADM L2)
- 597.0 km²35.6% of basin
- 364.1 km²21.7% of basin
- 226.3 km²13.5% of basin
- 179.4 km²10.7% of basin
- 173.8 km²10.4% of basin
- 135.9 km²8.1% of basin
- 2.2 km²0.1% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
298 distinct species · 1 357 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Sissari : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 31 interactions GloBI sur 2 types (connectance 10.3%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,0°C
Annual rain
2 927mm
Moisture idx (CMI)
0,53
Runoff
4 556mm/an
PET
1 293mm
AET
1 157mm
Mean slope
12,1°
Water table
374cm
Forest
33%
Crops
23%
Urban
1%
Protected
13%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)